43222720577 has 16 divisors (see below), whose sum is σ = 44607704400. Its totient is φ = 41853926400.

The previous prime is 43222720571. The next prime is 43222720601. The reversal of 43222720577 is 77502722234.

It can be written as a sum of positive squares in 8 ways, for example, as 4869806656 + 38352913921 = 69784^2 + 195839^2 .

It is a cyclic number.

It is not a de Polignac number, because 43222720577 - 2⁴ = 43222720561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43222720571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15106127 + ... + 15108987.

It is an arithmetic number, because the mean of its divisors is an integer number (2787981525).

Almost surely, 2^43222720577 is an apocalyptic number.

It is an amenable number.

43222720577 is a deficient number, since it is larger than the sum of its proper divisors (1384983823).

43222720577 is a wasteful number, since it uses less digits than its factorization.

43222720577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5524.

The product of its (nonzero) digits is 329280, while the sum is 41.

The spelling of 43222720577 in words is "forty-three billion, two hundred twenty-two million, seven hundred twenty thousand, five hundred seventy-seven".